Wednesday, August 23, 2017

And now its Oregon's turn to send a smoke monster our way

But it is still a minnow compared to the Canadian fellow who visited three weeks ago.

 Most of the smoke models did not and still don't expect Oregon smoke to hit central and eastern Washington. Here's the satellite picture from Tuesday afternoon showing how that crafty monster outwitted them.



Air in eastern WA has degraded slowly over the work week, as recorded by the monitors.



Air quality was mostly Moderate- Unhealthy for Sensitive Groups in much of eastern WA yesterday. Not all the smoke is caused by Oregon fires. Several fires in central, northern and northeast WA are adding to the mix. Fires in Thurston and western Kittitas counties caused Moderate air in Olympia and eastern King County, respectively last evening.

Forecast 
Air quality has returned to mostly Good in western WA is expected to remain that way through Friday at least. There will be some relief across eastern WA starting late tonight and lasting until Friday morning as a front moves through, giving rise to- yes, you guessed it- stronger southwest winds (= more Oregon smoke but also better dispersion) and greater fire danger.

Winds die down by Saturday as high pressure builds over the state to give us nice weekend weather. And poor smoke dispersion. So for most of eastern WA, the forecast will be for Moderate air on Wednesday, Good air on Thursday and back to Moderate air by Friday. Areas closer to fires will likely experience conditions that are Unhealthy for Sensitive Groups at times.

High pressure will likely be the "No Entry" sign for Oregon smoke over the weekend, thwarting the monster's spawning powers a bit. But there is a chance that some smoke from eastern WA wildfires could get caught up in east winds and make it over to western WA. Stay tuned, we're monitoring this situation.

No comments:

Post a Comment

We monitor this site during business hours, Monday through Friday, 8AM to 5PM. We encourage your questions, comments, and feedback. We ask that everyone be respectful of the opinions of others, and avoid comments that are defamatory, inappropriate or off-topic. If you have an emergency, please call 911.